Index: configure.ac
===================================================================
--- configure.ac
+++ configure.ac
@@ -821,7 +821,7 @@
 ##################################
 
 AC_HEADER_STDC
-AC_CHECK_HEADERS(unistd.h sys/select.h sys/msg.h sys/auxv.h)
+AC_CHECK_HEADERS(unistd.h sys/select.h sys/msg.h sys/auxv.h sys/random.h)
 INSERT_SYS_SELECT_H=
 if test x"$ac_cv_header_sys_select_h" = xyes; then
   INSERT_SYS_SELECT_H=" include <sys/select.h>"
Index: mpi/longlong.h
===================================================================
--- mpi/longlong.h
+++ mpi/longlong.h
@@ -305,7 +305,7 @@
     (ph) = __ph; \
   } while (0)
 # define count_leading_zeros(count, x) \
-  __asm__ ("clz %0, %1\n"                                               \
+  __asm__ ("clz %w0, %w1\n"                                               \
            : "=r" ((count))                                             \
            : "r" ((UDItype)(x)))
 #endif /* __aarch64__ */
Index: random/rndlinux.c
===================================================================
--- random/rndlinux.c
+++ random/rndlinux.c
@@ -29,6 +29,9 @@
 #ifdef HAVE_GETTIMEOFDAY
 # include <sys/times.h>
 #endif
+#if defined(HAVE_SYS_RANDOM_H)
+# include <sys/random.h>
+#endif
 #include <string.h>
 #include <unistd.h>
 #include <fcntl.h>